View Single Post
  #765  
Old 03-18-2008, 06:11 AM
41Sqn_Banks 41Sqn_Banks is offline
Approved Member
 
Join Date: Oct 2007
Posts: 644
Default

Quote:
Originally Posted by bomath View Post
the classic example is propeller pitch, which *sounds* like the engine is running suboptimal while in fact you get more power. It's simply weird to have memorized pages and pages of technical sheets just to be able to fly effectively;
In real life you got most available engine power at maximum boost + maximum rpm (which is 100/110% boost and 100% rpm in game).

See this diagram: http://www.spitfireperformance.com/merlin3curve.jpg

It shows that maximum power for Merlin III (blue line), which is achieved at 3000 rpm (maximum allowed rpm for that engine) and 6 1/4 lbs (maximum boost for 87 octane fuel) or 12 lbs (maximum boost for 100 octane fuel) respectively.

So every setting below 100/110% boost and 100% pitch gives you less engine power in real life.

The "only reason" to reduce engine rpm is "to treat the engine with care"; 100/110% boost and 100% pitch is only allowed for 5 minutes in real life.